In a sip system, doesn't the pbx just negotiate the connection and then get out of the way? Or, does all the voice traffic go through the pbx?

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Yes - unless you've got the extensions bound to the pbx. What sort of phones have you got ? Also - is the echo internal and external or just for external calls.....? I've found horrible echo problems when the handset gain is increased along with high handset colume. You end up with the beginnings of a feedback loop. If you're getting echo when you're running test calls it may simply be a gain issue. I think we need a bit more info.

http://www.resolvetech.co.uk
3cx partner in Worcestershire, UK

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In a sip system, doesn't the pbx just negotiate the connection and then get out of the way? Or, does all the voice traffic go through the pbx?

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You may take a look to the "Server status" page in user interface.
"MediaServerReporting" provides information about mode of RTP connection.
Please include quotation from Server status page to your message. It will help community to answer your question.

Anyway, PBX DOES NOT modify audio content

Thanks

Stepan
3CX Development Team

3CX News, Tips and How to's at http://www.3cx.com/blog/Very useful links are listed on http://www.3cx.com/support/

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